package com.cy.order.tcc;

import com.cy.order.entity.Order;
import com.cy.order.mapper.OrderMapper;
import io.seata.rm.tcc.api.BusinessActionContext;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.transaction.annotation.Transactional;

import java.math.BigDecimal;

@Component
public class OrderTccActionImpl implements OrderTccAction {

    @Autowired
    private OrderMapper orderMapper;

    //第一阶段方法需要手动调用
    @Transactional
    @Override
    public boolean prepare(BusinessActionContext ctx, Long orderId, Long userId, Long productId, Integer count, BigDecimal money) {
        // 插入状态是0的订单，表示是一个冻结的订单
        orderMapper.create(new Order(orderId,userId,productId,count,money,0));

        //第一阶段成功，保存一个一阶段的成功标记
        ResultHolder.setResult(OrderTccAction.class,ctx.getXid(),"p");

        return true;
    }

    @Transactional
    @Override
    public boolean commit(BusinessActionContext ctx) {
        //如果没有标记，二阶段不执行
        //没有标记的原因：
        //第一阶段没有成功
        //第二阶段已经执行过，标记已删除，不再重复执行
        if (ResultHolder.getResult(OrderTccAction.class,ctx.getXid()) == null){
            return true;
        }

        orderMapper.updateStatus(Long.valueOf(ctx.getActionContext("orderId").toString()) ,1);

        //第二阶段成功，删除标记
        ResultHolder.removeResult(OrderTccAction.class,ctx.getXid());
        return true;
    }

    @Transactional
    @Override
    public boolean rollback(BusinessActionContext ctx) {

        if (ResultHolder.getResult(OrderTccAction.class,ctx.getXid()) == null){
            return true;
        }

        orderMapper.deleteById(Long.valueOf(ctx.getActionContext("orderId").toString()));

        ResultHolder.removeResult(OrderTccAction.class,ctx.getXid());

        return true;
    }
}
